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How do you tell if a fuel pump is not working? 


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 Post subject: How do you tell if a fuel pump is not working?
Posted: Sat Nov 10, 2007 7:12 pm 
Fordmods Newbie

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Joined: 5th Nov 2007

Location: Hallidays Point
NSW, Australia

Hi, I have just purchased an EF wagon ex-taxi and the person I bought it off said it was LPG only but it is obviously just not running on petrol. It is a Tickford factory lpg. I would like to get it going again on petrol. The petrol pump and guage sensor connector was disconnected in the wheel well. It has 12v to it but if I plug it into the pump and turn off lpg the voltage drops to 3v and there is no pump noise (I expected there would be). How can I test the pump to make sure it is working?
Posted: Sun Nov 11, 2007 10:10 pm 
Stock as a Rock

Posts: 119

Joined: 4th Jun 2006

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Location: Palmerston North
Oustide Australia

Find the fuel pump relay, green or brown (can't remember which one) The one with the yellow/black wire that goes to the fuel pump. Pull out the relay and connect the terminals so battery power flows through to the fuel pump.

I believe when you turn the key to on (don't start it) the fuel pump primes for 2-3 seconds. Pull off a the inlet fuel hose and put it into a jar and do the key to on test. Fuel should be squirting out.

If not double check the filter, they can get pretty well full of crap.
Posted: Wed Nov 21, 2007 8:15 pm 
Stock as a Rock

Age: 44

Posts: 126

Joined: 22nd Jan 2007

Location: rosebud
VIC, Australia

I was going to ask the same question. I went to start my ef wagon today to come home from work and it wouldn't start ( for the first time in 10 years) like yours, I can't hear the fuel pump making that little noise it makes when you turn the key. Sorry to post a question on your post mate but it may help us both :wink: Should I just replace the pump or could it be something else. Thanks..........David
Posted: Thu Nov 22, 2007 12:50 am 
Technical Contributor
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Ride: 96 XH/97 EL

Location: South Coast
NSW, Australia

Earth the top right pin of the diagnosis connector, make sure petrol is selected, and turn IGN on - the pump should run continuously.



96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl
97 EL Futura S/W: LPG, Alarm, LED int Lts, Trip Comp, F/Lane Dome Lt, Climate Ctrl, T5 Conversion

Posted: Tue Nov 27, 2007 7:47 pm 
Getting Side Ways
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Location: penrith
NSW, Australia

hit the fuel tank with hammer,or listen for it ,cant hear it prime dead pump




ED fairmont R.I.P


Posted: Sat Feb 23, 2008 12:53 am 
Getting Side Ways
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Ride: BA XR6T (mix of BA, BF and FG)

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WA, Australia

a tip for anyone wondering if their fuel pump has worn out and died.. given to me by an auto electrician.

have someone try to start the car.. and while it is turning over, slap the bottom of the tank hard.. if the pump starts up, it's worn out and needs replacing.

obviously that will not be true in 100% of cases, but its apparently true in at least 95%.. and it was in my case also.
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